[1]司艳晓,徐孝轩,胡家硕.电化学氧化—絮凝系统协同去除水中砷的研究[J].中国给水排水,2021,37(17):50-56.
　SI Yan-xiao,XU Xiao-xuan,HU Jia-shuo.Synergistic Removal of Arsenic by Electrochemical Oxidization and Flocculation System[J].China Water & Wastewater,2021,37(17):50-56.
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电化学氧化—絮凝系统协同去除水中砷的研究

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第37卷 期数: 2021年第17期 页码: 50-56 栏目: 出版日期: 2021-09-01
Title:
Synergistic Removal of Arsenic by Electrochemical Oxidization and Flocculation System
作者:
司艳晓1,徐孝轩1,胡家硕2
(1.中国石油化工股份有限公司石油勘探开发研究院地面工程研究所，北京100083；2.北京科技大学能源与环境工程学院，北京100083)
Author(s):
SI Yan-xiao1，XU Xiao-xuan1，HU Jia-shuo2
(1. Institute of Ground Engineering， Petroleum Exploration and Development Research Institute，China Petroleum & Chemical Corporation， Beijing 100083， China； 2. School of Energy and Environmental Engineering， University of Science and Technology Beijing， Beijing 100083， China)
关键词:
高砷地下水; 电化学氧化; 电絮凝; 空气阴极
Keywords:
groundwater with high arsenic concentration; electrochemical oxidization; electrocoagulation; air cathode
摘要:
针对传统电絮凝所存在的曝气增氧、电极反应能耗高的关键问题，研究开发了空气阴极，并与铁阳极组成电化学氧化—絮凝协同除砷系统，比较了在相同电压下，新型电化学氧化—絮凝系统与传统电絮凝系统在砷去除效率、能耗上的区别。结果表明：当给定相同电压时，空气阴极电絮凝系统的电流密度较传统电絮凝系统要高得多。在2.0 V电压下，空气阴极电絮凝系统对As(Ⅲ)与总砷的去除反应速率常数约为曝气电絮凝系统的3倍。与曝气电絮凝相比，空气阴极电絮凝无需曝气，能节省50%的电极反应能耗，可节省74%的总能耗。
Abstract:
Aiming at the key problems of high energy consumption of aeration and electrode reaction in traditional electrocoagulation, an electrochemical oxidation-flocculation system composed of air cathode and iron anode was developed for arsenic removal. Arsenic removal efficiency and energy consumption of the new electrochemical oxidation-flocculation system and traditional electrocoagulation system at the same voltage was compared. Current density of air cathode electrocoagulation was much higher than that of traditional electrocoagulation system at the same voltage. When the voltage was 2.0 V, the reaction rate constant of As(Ⅲ) and total arsenic removal in air cathode electrocoagulation was three times of that in aerated electrocoagulation. Compared with aerated electrocoagulation, there was no aeration in air cathode electrocoagulation, which could save 50% energy consumption of electrode reaction and 74% total energy consumption.
更新日期/Last Update: 2021-09-01